cool work mold steel D2 steel round bar stockists

D2 steel round bar and plate can be used to produce cold work mold with a large
cross-section, complex shape, high impact force, and high wear resistance. It
also is called DIN 1.2379 and JIS SKD11 steel. It is a high-carbon and high-
chromium cold work mold steel. It is widely used in the world. It has high
hardenability and the high-temperature oxidation resistance is good. The anti-
corrosion ability is good after quenching and polishing, and the deformation is
small after the steel heat treatment.

D2 Steel Application
1.2379 steel is used for blanking or forming dies, thread rolling dies, shear
knives, food-processing knives, gauges, punches and etc.

D2 Steel Round Bar Sheet Plate Heat Treatment
Heat Treatment

DIN 1.2379 steels alloy should be preheated very slowly to 815℃ (1500°F) and
the temperature can be increased to 1010oC (1850°F). Then held at 1010oC
(1850°F) for 20 to 45 minutes and air-cooled (air quenched).

Annealing

Annealing of 1.2379 tool steels material should be done at 871 to 898°C (1600
to 1650°F) followed by slow furnace cooling at 4.4°C (40°F) per hour or
less, after which cooling rate could be increased. At the same time, must do
something to prevent excessive carburization or decarburization.

Stress Relieving

Heat it slowly to 1050°-1250°F, allow to equalize, and then cool in still
air(Strain Relieving)

Preheat Prior To Hardening

Preheat slowly to 1350°-1450°F and hold at this temperature until steel
1.2379 steel material is uniformly heated.

Hardening

After thorough preheating, heat to 1800°-1850°F. Hold it at the hardening
temperature until it is completely and uniformly heated.

Quenching

DIN 1.2379 steel tool material is an air hardening steel and will develop
hardness on cooling in still air. To avoid scaling and prevent decarburization
on the surface, controlled atmosphere or vacuum furnaces are recommended. Parts
should be allowed to cool to 150F, or to where they can be held in the bare
hand, and then temper immediately.

Tempering

The tempering temperature on material 1.2379 steel may be varied according to
the desired hardness. 1.2379 steels can be tempered at 204°C (400°F) for
achieving Rockwell C hardness of 61 and at 537°C (1000°F) for a Rockwell C
hardness of 54.

Compare

Chinese Cr12Mo1V1 steel, American D2 steel, Japanese SKD11 steel, the chemical
composition of them is the same, but the performance is very different. After
heat treatment, the color of Cr12Mo1V1 is a little orange-red, and the
deformation would be large. It is easy to fracture during use. And the hardness
of D2 steel is higher than SKD11 steel, but the toughness is not better than
SKD11 steel. SKD11 steel is light and smooth, with the best overall
performance.

AISI D2 Steel Round Bar Plate Sheet Supply
We have our own cutting and processing equipment. Specifications can be cut and
customized according to your requirements.

We are a professional special steel stockist and supplier with a high-quality
stand for many years. Please contact us for any request of D2/1.2379 steels
materials. Songshun Steel always with you.

Songshun Steel
After over 20 years of development and growth, Songshun Steel becomes one
comprehensive special steel factory, stockist and exporter. The excellent
customer group, capital conditions, service attitude and professionalism always
push us to get better to service customers.

The great experienced exporting team and professional engineer team as our
strong back to make everyone understand what Chinese steel really is.

Minimum Order: 1 kilograms

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